'The Drowsy Chaperone' Original Broadway Cast
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32bb3869843f855ae9ab74e0183744bd805c3b2f182f86143d95bdef2c7c8020. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b8f8a699-1fd3-4bf1-850d-0fca4e1b260b.json and https://artists.proofprofile.net/proofs/artist/b8f8a699-1fd3-4bf1-850d-0fca4e1b260b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Drowsy Chaperone (Original Broadway Cast Recording)
The Drowsy Chaperone Original Broadway Orchestra
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a7ae17c94a7221984874c4addd92ed60ed212e5513a3b093fc07df28ada0429. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c4613b2df35d762be2a90c6ef3508fef7cd9d0f9442ec11cdc64c5c2c75eae5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932ad07c5c26a206eb34e4b5d3f99a12d4645dc4e8f601717482af1dc17992e5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc837eaf6b863e133b1de07ac953c4b5bd2f8900365638f30411131a987a1d40. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca02ae7428f49fcafea38ee71f213ea4109fb47acc50856dbf0345c60df50ebf. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x132179973d880f6869fb092c976afdb8765c59a763bb2aae0468f9d04f217080. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f9d5c96c63697081a80df56a191069f9c239605d154dfee890f54c68a9964f3. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x178e407c8131cd1dd2ca4f9b74102168e48332bc0f1386e76ff3f80ae46755b0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02643c4dd9d3b291d65019aa26be6df69833fbbf51cd50260b034a8aec679e5c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644314.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b9def4a350b7bc23bc064d790000fdf5da8d6477d1a62ee74637eea15362603. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cb654f329455d6dd7564995efda94372d4840a6503f1ff57c5aad3f0ce51b7. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe402b685574d9b4811306fd2dcd0d1ee55f32dc556c42c6b22735397bc2c9d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f8d5aa3ff99299ae2b0e937d7df8085df07f5881fcd8de57bbe4d6349c05b63. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8e94cf6597200f621f5d898718c97aa8d22743567a4c4f46b3447db0719e43e. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaaa3efdcb5fd34b56738f09e127ed5b917ee894579972f91f1b1e9656ac329f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSK30644320.